Modern smartphones provide many ways to inform the user about missed calls or new messages. Owners of Xiaomi Redmi 9T often wonder how to properly activate these functions, since there are some features in the MIUI shell.
It's important to understand that not having a constant glow in standby mode is not a malfunction, but a design feature designed to save battery life. However, the system offers flexible alternatives to avoid missing important events even when the screen is locked.
In this article, we will take a look at all the available display methods, from built-in system functions to third-party applications. You will learn how to control the behavior of the screen when incoming events and can adapt the smartphone to your personal preferences. Let's look at each step of settings in as much detail as possible.
Features of the display in the Redmi 9T model
The first thing to note when working with the Redmi 9T is that there is no classic LED light at the top of the case, and the company's engineers have decided to abandon it in favor of more functional display-based solutions, which allows for more complex color schemes and blinking patterns that are not available for a single-color diode.
The main tool for the filtering here is the screen itself, which can light up a certain color when the signal arrives, a technology called screen display and requires minimal power consumption thanks to the IPS LCD matrix. The user can choose the color for different types of applications, which makes navigation by notifications more intuitive.
⚠️ Warning: Continuous use of the Notification Blink feature can lead to faster wear and loss of device autonomy during the day.
In addition, the MIUI 12 and later onboard system offers a Light Effect feature that mimics how the LED works by turning on the backlight for a short time, a compromise solution that allows you to keep visual feedback without constantly burning the screen, and understanding these differences will help you choose the best use case.
Activation of light effects in settings
To get started with visual alerts, you need to go to the appropriate system settings section. The path may vary slightly depending on the firmware version, but the overall logic remains the same for all Xiaomi devices.
Follow the instructions to activate the base flash:
- 📱 Open the settings of your smartphone.
- ⚙️ Go to the Additional Settings section (or Advanced Settings).
- 💡 Find the item Light indication or Light effects.
- ✅ Activate the Miganie switch at notifications.
Once this feature is enabled, the screen will light up briefly when you receive SMS or calls. If you do not find this item in the specified place, try searching for the settings by entering the word “indication.” In some firmware regions, this option may be called “Event Indicator”.
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If the standard function doesn’t work, make sure that the battery settings for system applications don’t have a hard limit on background activity.
Customize colors for different applications
One of the most useful features in Xiaomi is the ability to pin a specific color to a specific app, which allows you to see at first glance who wrote or called you without even taking your phone out of your pocket, and allows you to flexibly configure these parameters for most popular instant messengers.
To adjust the color scheme, perform the following steps:
- 🎨 In the menu Light indication select the item Application.
- 📞 Click on the desired program, for example, Telegram or Viber.
- 🌈 Choose your preferred color from the available palette.
- 💾 Save the changes with the “OK” button or tick.
Not all apps support this feature at the system level. If you didn't find the right messenger in the list, the developer may not have provided the appropriate API for integration with the system display, in which case the color will be set by default or not displayed at all.
| Annex | Type of event | Possibility of color adjustment | Priority of the show |
|---|---|---|---|
| Phone. | Incoming challenge | Yes. | High-pitched |
| Messages (SMS) | New SMS | Yes. | High-pitched |
| Message | Yes. | Medium. | |
| Like/Commentary | Limited. | Low. | |
| Post | New letter | No (general) | Low. |
Use the Always On Display mode
A more modern version of the flashing LED is the Always On Display feature, which is software-based on the Redmi 9T, allowing you to display the clock, date and notification icons on a black background without turning on all the backlights of the matrix, which is not only informative, but also aesthetic.
To activate this mode, go to Settings → Always on screen and lock. Here you can choose the display style, adjust the running time (for example, only 10 seconds after touching or constantly during the day), and add personal signatures. This makes the lock screen lively and useful.
Impact on the battery
Importantly, for energy saving, the system can automatically turn off this mode if the battery charge drops below a certain level (usually 20%).
Addressing the lack of notifications
There are times when the settings are correct, but the screen doesn't light up when the messages arrive, and most often the problem is MIUI's aggressive energy saving policies, which kill the application's background processes, which are standard behaviors that can be adjusted.
To remedy the situation, it is necessary to:
- 🔋 Go to Settings. → Annexes → All applications.
- 🔍 Find a problem app (such as WhatsApp).
- ⚡ Select the Energy Saving Point.
- 🔄 Establish a regime No restrictions.
⚠️ Warning: Setting No Limits mode can increase battery consumption as the app will be constantly active in the background and use an internet connection.
Also check if Do Not Disturb or Silent Mode is enabled, which can block visual signals. Make sure that the notification settings for a particular application allow display on the lock screen. Without this permission, the system will not wake the display.
☑️ Diagnostics of problems
Alternative applications for indication
If standard features aren't enough, Google Play offers a host of third-party solutions, apps like NotifyBuddy or Light On Notification can mimic LED performance with more flexibility than standard firmware, and they can flash a flash or a specific section of the screen.
When installing these gates, it is important to remember that you need to give broad permissions, that the program must have access to notifications to read their contents, and the right to draw on top of other windows, and that without these permissions, the functionality will be limited or completely inoperable.
Using third-party software is always a risk of reducing system stability, and such applications may conflict with system themes or other widgets, only use them if you are not satisfied with the built-in Xiaomi tools.
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Third-party applications offer more customization options, but require permanent permissions and can land the battery faster than system solutions.
Optimizing battery and performance
Any active display consumes battery life. To find a balance between convenience and autonomy, it is recommended to use adaptive settings, for example, you can adjust the schedule of indicators so that they do not disturb you at night when the phone is lying on the nightstand.
You should also regularly clean the cache of system services if you notice that notifications are late or not displayed at all. A failure in the System UI service can lead to incorrect display of light signals. Rebooting your smartphone once a week helps keep the system in good shape.